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apply_filters( 'pre_wp_is_site_initialized', bool|null $pre, int $site_id )

Filters the check for whether a site is initialized before the database is accessed.

Returning a non-null value will effectively short-circuit the function, returning that value instead.

$pre: (bool|null) The value to return instead. Default null to continue with the check.
$site_id: (int) The site ID that is being checked.

Used By	Description
wp-includes/ms-site.php: wp_is_site_initialized()	Checks whether a site is initialized.

Version	Description
5.1.0	Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/pre_wp_is_site_initialized